WaterPond said:how about some tank specs and water test readings.
ezy33 said:Have you checked for phosphates?
Lance M. said:Some questions-
How long did you acclimate it? How long has your tank been setup? What lights do you have?
It's probably just shriveled up because you fed it. Since there's one way in and out, anemones will shrivel up from time to time to expell wastes, some will shrivel up 2 or 3 times a week and others will shrivel up once every two weeks just depends. If it's not fully expanded in a day then I'd be worried. But that's something you should of read about when you were researching before buying, especially something hard to keep like a carpet anemone.
Lance M. said:It's probably fine. You should of maybe waited a couple days to let it acclimate to the tank before feeding it, but it sounds like it's just acting accordingly.
Sitting next to a window is probably more of a bad thing that a good thing, but not much to worry about. The main reasons why not to put your aquarium next to a window is heat transference and the indirect sunlight, which can cause unwanted algae to grow. The ideal place for a tank would be in an inner part of your home.
Edit: Also the fact that it was very sticky when you bought it tells you that it is healthy.